An AC power supply with frequency 10 Hz is connected to a resistor (with resistance R), a capacitor (with capacitance C) and an inductor (with inductance L). If the power supply's frequency is increased to 30 Hz, how does the capacitive reactance (Xc) change? a) Xe increases by a factor of 9. b) Xc increases by a factor of 3. c) There is no change in Xc- d) Xc decreases by a factor of 3.
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- Part A The following graph shows the voltage and current through a single circuit element. What is the frequency of the ac generator? Vp = 65.0 V, Ip = 4.60 A, t₁ = 0.0816 s. Voltage Current NAN p Submit Answer Tries 0/6 Part B What is the average power dissipated in this element? Submit Answer Tries 0/6 t(s) Part C The circuit element above is either a resistor, an inductor, or a capacitor. Use the graph and what you know of circuit elements to determine what type of element is shown in the graph. If it is a resistor, what is the value of its resistance? If it is an inductor, what is its inductance? If it is a capacitor, what is its capacitance? Submit Answer Tries 0/6A 2.7 μC capacitor is connected to a variable AC voltage supply (rms voltage = 240 v, frequency f = 80 Hz). What is the capacitive reactance? a) 0.0014 Ω b) 2315 Ω c) 736 Ω d) none of these.Help me answer this question, from my A-level physics class (Topic: AC Currents & Capacitors)
- An AC circuit has a purely capacitive load. If the amplitude of the EMF is 10.27 V with a frequency of 193.3 Hz, the capacitance is 73.2 UF, and the driving voltage is initially zero. What is the current in the capacitor after 0.732 s? A Save for Later Submit AnswerA 22-kN resistor is in series with a 56-mH inductor and Part A an ac source. Calculate the impedance of the circuit if the source frequency is 70 Hz . Express your answer to two significant figures and include the appropriate units. HÀ ? Z = Value Units Submit Request Answer Part B Calculate the impedance of the circuit if the source frequency is 8.1x104 Hz. Express your answer to two significant figures and include the appropriate units. HẢ Z = Value Units Submit Request AnswerA series RCL circuit contains a 35.5-Q resistor, a 2.10-μF capacitor, and a 6.14-mH inductor. When the frequency is 2660 Hz, what is the power factor of the circuit? Number i Units
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